guitar accessories roller string electric bass

• Increased the force of the strings against the pillow, improve the volume.
• Retain the string perfectly and reduce the string friction to save string, and guarantee more accurate.
• They also can prevent wear and tear on the strings, which results in longer string life.
• Made of high quality composite material, durable.
• Suitable for classical guitar, flamenco guitar and ukulele.

6 Pieces String Retainer